<!--
 * @Descripttion: 数据表格组件
 * @version: 1.10
 * @Author: sakuya
 * @Date: 2021年11月29日21:51:15
 * @LastEditors: sakuya
 * @LastEditTime: 2022年6月4日17:35:26
-->

<template>
	<div class="scTable" :style="{'height':_height}" ref="scTableMain" v-loading="loading">
		<div class="scTable-table" :style="{'height':_table_height}">
			<el-table v-bind="$attrs" :data="tableData" :row-key="rowKey" :key="toggleIndex" ref="scTable"
					  :height="height==='auto'?null:'100%'" :size="config.size" :border="config.border"
					  :stripe="config.stripe" :summary-method="remoteSummary?remoteSummaryMethod:summaryMethod"
					  @sort-change="sortChange" @filter-change="filterChange">
				<slot></slot>
				<template v-for="(item, index) in userColumn" :key="index">
					<el-table-column v-if="!item.hide" :column-key="item.prop" :label="item.label" :prop="item.prop"
									 :width="item.width" :sortable="item.sortable" :fixed="item.fixed"
									 :filters="item.filters"
									 :filter-method="remoteFilter||!item.filters?null:filterHandler"
									 :show-overflow-tooltip="item.showOverflowTooltip">
						<template #default="scope">
							<slot :name="item.prop" v-bind="scope">
								{{ scope.row[item.prop] }}
							</slot>
						</template>
					</el-table-column>
				</template>
				<el-table-column min-width="1"></el-table-column>
				<template #empty>
					<el-empty :description="emptyText" :image-size="100"></el-empty>
				</template>
			</el-table>
		</div>
		<div class="scTable-page" v-if="!hidePagination || !hideDo">
			<div class="scTable-pagination">
				<el-pagination v-if="!hidePagination" background :small="true" :layout="paginationLayout" :total="total"
							   :page-size="scPageSize" :page-sizes="pageSizes" v-model:currentPage="currentPage"
							   @current-change="paginationChange" @update:page-size="pageSizeChange"></el-pagination>
			</div>
			<div class="scTable-do" v-if="!hideDo">
				<el-button v-if="!hideRefresh" @click="refresh" icon="el-icon-refresh" circle
						   style="margin-left:15px"></el-button>
				<el-popover v-if="column" placement="top" title="列设置" :width="500" trigger="click" :hide-after="0"
							@show="customColumnShow=true" @after-leave="customColumnShow=false">
					<template #reference>
						<el-button icon="el-icon-set-up" circle style="margin-left:15px"></el-button>
					</template>
					<columnSetting v-if="customColumnShow" ref="columnSetting" @userChange="columnSettingChange"
								   @save="columnSettingSave" @back="columnSettingBack"
								   :column="userColumn"></columnSetting>
				</el-popover>
				<el-popover v-if="!hideSetting" placement="top" title="表格设置" :width="300" trigger="click"
							:hide-after="0">
					<template #reference>
						<el-button icon="el-icon-setting" circle style="margin-left:15px"></el-button>
					</template>
					<el-form label-width="80px" label-position="left">
						<el-form-item label="尺寸">
							<el-radio-group v-model="config.size" size="small" @change="configSizeChange">
								<el-radio-button label="large">大</el-radio-button>
								<el-radio-button label="default">中</el-radio-button>
								<el-radio-button label="small">小</el-radio-button>
							</el-radio-group>
						</el-form-item>
						<el-form-item label="样式">
							<el-checkbox v-model="config.border" label="纵向边框"></el-checkbox>
							<el-checkbox v-model="config.stripe" label="斑马纹"></el-checkbox>
						</el-form-item>
					</el-form>
				</el-popover>
			</div>
		</div>
	</div>
</template>

<script>
import config from "@/config/table";
import columnSetting from './columnSetting'

export default {
	name: 'scTable',
	components: {
		columnSetting
	},
	props: {
		tableName: {type: String, default: ""},
		apiObj: {
			type: Object, default: () => {
			}
		},
		params: {type: Object, default: () => ({})},
		data: {
			type: Object, default: () => {
			}
		},
		height: {type: [String, Number], default: "100%"},
		size: {type: String, default: "default"},
		border: {type: Boolean, default: false},
		stripe: {type: Boolean, default: false},
		pageSize: {type: Number, default: config.pageSize},
		pageSizes: {type: Array, default: config.pageSizes},
		rowKey: {type: String, default: ""},
		summaryMethod: {type: Function, default: null},
		column: {
			type: Object, default: () => {
			}
		},
		remoteSort: {type: Boolean, default: false},
		remoteFilter: {type: Boolean, default: false},
		remoteSummary: {type: Boolean, default: false},
		hidePagination: {type: Boolean, default: false},
		hideDo: {type: Boolean, default: false},
		hideRefresh: {type: Boolean, default: false},
		hideSetting: {type: Boolean, default: false},
		paginationLayout: {type: String, default: config.paginationLayout},
	},
	watch: {
		// 监听从props里拿到值了
		data() {
			this.tableData = this.data;
			this.total = this.tableData.length;
		},
		apiObj() {
			this.tableParams = this.params;
			this.refresh();
		},
		column() {
			this.userColumn = this.column;
		}
	},
	computed: {
		_height() {
			return Number(this.height) ? Number(this.height) + 'px' : this.height
		},
		_table_height() {
			return this.hidePagination && this.hideDo ? "100%" : "calc(100% - 50px)"
		}
	},
	data() {
		return {
			scPageSize: this.pageSize,
			isActivat: true,
			emptyText: "暂无数据",
			toggleIndex: 0,
			tableData: [],
			total: 0,
			currentPage: 1,
			prop: null,
			order: null,
			loading: false,
			tableHeight: '100%',
			tableParams: this.params,
			userColumn: [],
			customColumnShow: false,
			summary: {},
			config: {
				size: this.size,
				border: this.border,
				stripe: this.stripe
			}
		}
	},
	mounted() {
		// 判断是否开启自定义列
		if (this.column) {
			this.getCustomColumn()
		} else {
			this.userColumn = this.column
		}
		// 判断是否静态数据
		if (this.apiObj) {
			this.getData();
		} else if (this.data) {
			this.tableData = this.data;
			this.total = this.tableData.length
		}
	},
	activated() {
		if (!this.isActivat) {
			this.$refs.scTable.doLayout()
		}
	},
	deactivated() {
		this.isActivat = false;
	},
	methods: {
		// 获取列
		async getCustomColumn() {
			this.userColumn = await config.columnSettingGet(this.tableName, this.column)
		},
		// 获取数据
		async getData() {
			this.loading = true;
			const reqData = {
				[config.request.pageNum]: this.currentPage,
				[config.request.pageSize]: this.scPageSize,
				[config.request.prop]: this.prop,
				[config.request.order]: this.order
			}
			if (this.hidePagination) {
				delete reqData[config.request.pageNum]
				delete reqData[config.request.pageSize]
			}
			Object.assign(reqData, this.tableParams)

			let res;
			try {
				res = await this.apiObj.get(reqData);
			} catch (error) {
				this.loading = false;
				this.emptyText = error.statusText;
				return false;
			}
			let response;
			try {
				response = config.parseData(res);
			} catch (error) {
				this.loading = false;
				this.emptyText = "数据格式错误";
				return false;
			}

			this.emptyText = "暂无数据";
			if (this.hidePagination) {
				this.tableData = response.data || [];
			} else {
				this.tableData = response.rows || [];
			}
			this.total = response.total || 0;
			this.summary = response.summary || {};
			this.loading = false;

			this.$refs.scTable.setScrollTop(0)
			this.$emit('dataChange', res, this.tableData)
		},
		// 分页点击
		paginationChange() {
			this.getData();
		},
		// 条数变化
		pageSizeChange(size) {
			this.scPageSize = size
			this.getData();
		},
		// 刷新数据
		refresh() {
			this.$refs.scTable.clearSelection();
			this.getData();
		},
		// 更新数据 合并上一次params
		upData(params, page = 1) {
			this.currentPage = page;
			this.$refs.scTable.clearSelection();
			Object.assign(this.tableParams, params || {})
			this.getData()
		},
		// 重载数据 替换params
		reload(params, page = 1) {
			this.currentPage = page;
			this.tableParams = params || {}
			this.$refs.scTable.clearSelection();
			this.$refs.scTable.clearSort()
			this.$refs.scTable.clearFilter()
			this.getData()
		},
		// 自定义变化事件
		columnSettingChange(userColumn) {
			this.userColumn = userColumn;
			this.toggleIndex += 1;
		},
		// 自定义列保存
		async columnSettingSave(userColumn) {
			this.$refs.columnSetting.isSave = true
			try {
				await config.columnSettingSave(this.tableName, userColumn)
			} catch (error) {
				this.$message.error('保存失败')
				this.$refs.columnSetting.isSave = false
			}
			this.$message.success('保存成功')
			this.$refs.columnSetting.isSave = false
		},
		// 自定义列重置
		async columnSettingBack() {
			this.$refs.columnSetting.isSave = true
			try {
				this.userColumn = await config.columnSettingReset(this.tableName, this.column)
				this.$refs.columnSetting.usercolumn = JSON.parse(JSON.stringify(this.userColumn || []))
			} catch (error) {
				this.$message.error('重置失败')
				this.$refs.columnSetting.isSave = false
			}
			this.$refs.columnSetting.isSave = false
		},
		// 排序事件
		sortChange(obj) {
			if (!this.remoteSort) {
				return false
			}
			if (obj.column && obj.prop) {
				this.prop = obj.prop
				this.order = obj.order
			} else {
				this.prop = null
				this.order = null
			}
			this.getData()
		},
		// 本地过滤
		filterHandler(value, row, column) {
			const property = column.property;
			return row[property] === value;
		},
		// 过滤事件
		filterChange(filters) {
			if (!this.remoteFilter) {
				return false
			}
			Object.keys(filters).forEach(key => {
				filters[key] = filters[key].join(',')
			})
			this.upData(filters)
		},
		// 远程合计行处理
		remoteSummaryMethod(param) {
			const {columns} = param
			const sums = []
			columns.forEach((column, index) => {
				if (index === 0) {
					sums[index] = '合计'
					return
				}
				const values = this.summary[column.property]
				if (values) {
					sums[index] = values
				} else {
					sums[index] = ''
				}
			})
			return sums
		},
		configSizeChange() {
			this.$refs.scTable.doLayout()
		},
		// 插入行 unshiftRow
		unshiftRow(row) {
			this.tableData.unshift(row)
		},
		// 插入行 pushRow
		pushRow(row) {
			this.tableData.push(row)
		},
		// 根据key覆盖数据
		updateKey(row, rowKey = this.rowKey) {
			this.tableData.filter(item => item[rowKey] === row[rowKey]).forEach(item => {
				Object.assign(item, row)
			})
		},
		// 根据index覆盖数据
		updateIndex(row, index) {
			Object.assign(this.tableData[index], row)
		},
		// 根据index删除
		removeIndex(index) {
			this.tableData.splice(index, 1)
		},
		// 根据index批量删除
		removeIndexes(indexes = []) {
			indexes.forEach(index => {
				this.tableData.splice(index, 1)
			})
		},
		// 根据key删除
		removeKey(key, rowKey = this.rowKey) {
			this.tableData.splice(this.tableData.findIndex(item => item[rowKey] === key), 1)
		},
		// 根据keys批量删除
		removeKeys(keys = [], rowKey = this.rowKey) {
			keys.forEach(key => {
				this.tableData.splice(this.tableData.findIndex(item => item[rowKey] === key), 1)
			})
		},
		// 原生方法转发
		clearSelection() {
			this.$refs.scTable.clearSelection()
		},
		toggleRowSelection(row, selected) {
			this.$refs.scTable.toggleRowSelection(row, selected)
		},
		toggleAllSelection() {
			this.$refs.scTable.toggleAllSelection()
		},
		toggleRowExpansion(row, expanded) {
			this.$refs.scTable.toggleRowExpansion(row, expanded)
		},
		setCurrentRow(row) {
			this.$refs.scTable.setCurrentRow(row)
		},
		clearSort() {
			this.$refs.scTable.clearSort()
		},
		clearFilter(columnKey) {
			this.$refs.scTable.clearFilter(columnKey)
		},
		doLayout() {
			this.$refs.scTable.doLayout()
		},
		sort(prop, order) {
			this.$refs.scTable.sort(prop, order)
		}
	}
}
</script>

<style scoped>
.scTable {
}

.scTable-table {
	height: calc(100% - 50px);
}

.scTable-page {
	height: 50px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 15px;
}

.scTable-do {
	white-space: nowrap;
}

.scTable:deep(.el-table__footer) .cell {
	font-weight: bold;
}

.scTable:deep(.el-table__body-wrapper) .el-scrollbar__bar.is-horizontal {
	height: 12px;
	border-radius: 12px;
}

.scTable:deep(.el-table__body-wrapper) .el-scrollbar__bar.is-vertical {
	width: 12px;
	border-radius: 12px;
}
</style>
